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Study of optical absorption and quality of amorphous silicon and nanocrystalline silicon thin films using photothermal deflection spectroscopy and electron spin resonance
Contributor:Salazar, Anthony; Theingi, San; Klafehn, Grant; Airuoyo, Idemudia; Rideout, Rex; Kendrick, Chito; Collins, Reuben; Taylor, Craig
Simulation of silicon-based solar cells using finite element analysis (FEA)
Contributor:Schenken, Will; Airuoyo, Idemudia; Collins, Reuben
Amorphous silicon (a-Si) and crystalline silicon (c-Si) are some of the most commonly used materials in modern solar cells due to their abundance, inexpensiveness, and performance in photovoltaics. New designs are being ...
Characterization of amorphous silicon and silicon nanoparticle films using variable angle spectroscopic ellipsometry
Contributor:Valentine, Clare; Klafehn, Grant; Airuoyo, Idemudia; Kendrick, Chito; Furtak, Thomas; Collins, Reuben
Benzoic acid surface functionalization of conduction band engineered Zn1-xMgxO layers for enhanced organic/inorganic photovoltaics
Contributor:Flores, Tom; Brenner, Thomas; Chen, Gang; Furtak, Thomas; Collins, Reuben
Increasing the efficiency of organic/inorganic photovoltaics will open the door to a cheap, easy, and safe means to bring solar energy to the masses. A key role in raising this efficiency is by maximizing the band gap ...
Etch Resistant Zn1-xMgxO alloys as an e'-acceptor for dye sensitized solar cells
Contributor:Meing, Erich; Brenner, Thomas; Collins, Reuben; Furtak, Thomas
In DSSCs, dyes are used to photosensitize a nanoporous electrode, most commonly TiO2. Light excites the dye, which then transfers an electron to the metal oxide electrode. The electron then travels to the conducting contact ...
Using AFM to find evidence of conformal monolayers
Contributor:Meinig, Erich; Brenner, Thomas; Chen, Gang; Collins, Reuben; Furtak, Thomas
Atomic force microscopy (AFM) is one of the tools used to infer whether a conformal monolayer of the surface treatment exists. AFM roughness measurements can be used to detect changes in height before and after surface ...
Raman spectroscopy of silicon quantum dots
Contributor:Rachel, Kurchin; Kendrick, Chito; Collins, Reuben; Furtak, Thomas
Silicon quantum dots are synthesized and studied extensively by REMRSEC, but they have not thus far had a fast and reliable way to characterize them. In this work, Raman spectroscopy is employed to study dots in varying ...
Raman characterization of ZnO and Si nanowires
Contributor:Whalen, Jessica; Collins, Reuben; Furtak, Thomas
Organic Photovoltaics (OPVs) have gained favor recently for low production cost and potential for roll-to-roll flexible substrates. Though efficiency is fundamentally less than commercial PVs, low production temperature ...
Optical spectroscopy of hybrid organic/inorganic solar cell materials
Contributor:Cruz, Jose; Chen, Gang; Otnes, Gaute; Kendrick, Chito; Furtak, Tom; Collins, Reuben
Although global energy demands are satisfied by fossil fuels, environmental sustainability is not possible. Due to a need for clean, renewable energy resources, we explored using inorganic photovoltaics as a primary resources ...
Incorporation of silicon nanoparticles into silicon based solar cells
Contributor:Grovogui, Jann; Kendrick, Chito; Collins, Reuben
In this project, silicon based solar cells were developed using active layers that consisted of Amorphous Silicon as well as Silicon Nanoparticles (Silicon Quantum Dots). The ultimate goal of this project was to fabricate ...